Western high culture reached a peak of nihilism in the mid-twentieth century and it was at about this time that the tradition of classical music was ruptured. The decades following 1950 were barren ones; if you loved classical music you had to go back to music that was composed earlier.
But there are signs of a revival. One of the most curious examples is that of the Welsh composer Karl Jenkins. He spent his early career as a jazz musician; according to his wikipedia entry his breakthrough into classical music happened in 1995 when he was already in his fifties.
If you listen to his music it's as if the great rupture never happened. He has picked up the tradition and carried on with it.
That's not to say that there aren't issues. He has written much sacred music but from within the "interfaith dialogue" perspective. So, for instance, in his work Stabat Mater there is a section involving an Islamic call to prayer. To my ears it just doesn't gel with the rest of the work.
Here is an abridged version of the Stabat Mater; in my opinion parts of it are very good:
Another work he is well-known for is the Benedictus from The Armed Man: